Finding the Fourth Proportional to 2,818,398.42, 4,227,586.20 and 1,020,861.18
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Solution
The fourth proportional to 2,818,398.42, 4,227,586.20 and 1,020,861.18 is: 1,531,287.63
Step by Step Solution
- Step 1: Write the proportion equation
2,818,398.42 : 4,227,586.20 = 1,020,861.18 : x - Step 2: Convert to fraction form
2,818,398.42/4,227,586.20 = 1,020,861.18/x - Step 3: Cross multiply
2,818,398.42x = 4,227,586.20 × 1,020,861.18 - Step 4: Simplify right side
2,818,398.42x = 4,315,778,636,683.72 - Step 5: Solve for x
x = 4,315,778,636,683.72/2,818,398.42 - Step 6: Final answer
x = 1,531,287.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.